Trace number 301517

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
Mmisat 2007-02-08Signal 242.182 242.245

General information on the benchmark

Namerandom/LargeSize/5SAT/v1000/
unif-k5-r20-v1000-c20000-S837858872-05.cnf
MD5SUM85514aaeb8ddbf9105f63035677ed014
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark324.317
Satisfiable
(Un)Satisfiability was proved
Number of variables1000
Number of clauses20000
Sum of the clauses size100000
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 520000
Number of clauses of size over 50

Solver Data (download as text)

241.89/242.03	*** glibc detected *** double free or corruption (out): 0x0b3050a0 ***

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node2/watcher-301517-1171975218 -o ROOT/results/node2/solver-301517-1171975218 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/301517-1171975218/mmisat /tmp/evaluation/301517-1171975218/instance-301517-1171975218.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.93 0.98 0.98 3/77 11555
/proc/meminfo: memFree=438648/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=1176 CPUtime=0
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 168 0 0 0 0 0 0 0 18 0 1 0 217476724 1204224 151 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 294 152 81 214 0 76 0

[startup+0.106286 s]
/proc/loadavg: 0.93 0.98 0.98 3/77 11555
/proc/meminfo: memFree=438648/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=1972 CPUtime=0.1
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 356 0 0 0 10 0 0 0 18 0 1 0 217476724 2019328 339 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517724 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 493 339 81 214 0 275 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1972

[startup+0.514329 s]
/proc/loadavg: 0.93 0.98 0.98 3/77 11555
/proc/meminfo: memFree=438648/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=3160 CPUtime=0.51
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 655 0 0 0 51 0 0 0 21 0 1 0 217476724 3235840 638 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 790 638 81 214 0 572 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3160

[startup+1.33441 s]
/proc/loadavg: 0.93 0.98 0.98 2/78 11556
/proc/meminfo: memFree=435376/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=4480 CPUtime=1.32
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 991 0 0 0 132 0 0 0 25 0 1 0 217476724 4587520 974 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 1120 974 81 214 0 902 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 4480

[startup+2.97058 s]
/proc/loadavg: 0.93 0.98 0.98 2/78 11556
/proc/meminfo: memFree=433904/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=6064 CPUtime=2.96
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 1393 0 0 0 296 0 0 0 25 0 1 0 217476724 6209536 1376 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 1516 1376 81 214 0 1298 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 6064

[startup+6.24692 s]
/proc/loadavg: 0.93 0.98 0.98 2/78 11556
/proc/meminfo: memFree=431800/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=7780 CPUtime=6.24
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 1801 0 0 0 623 1 0 0 25 0 1 0 217476724 7966720 1784 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517196 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 1945 1784 81 214 0 1727 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 7780

[startup+12.7046 s]
/proc/loadavg: 0.94 0.98 0.98 2/78 11556
/proc/meminfo: memFree=430072/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=9232 CPUtime=12.69
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 2172 0 0 0 1268 1 0 0 25 0 1 0 217476724 9453568 2155 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 2308 2155 81 214 0 2090 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 9232

[startup+25.5119 s]
/proc/loadavg: 0.95 0.98 0.98 2/78 11556
/proc/meminfo: memFree=428664/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=10684 CPUtime=25.5
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 2521 0 0 0 2548 2 0 0 25 0 1 0 217476724 10940416 2504 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 2671 2504 81 214 0 2453 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 10684

[startup+51.1256 s]
/proc/loadavg: 0.97 0.98 0.98 2/78 11556
/proc/meminfo: memFree=427000/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=12268 CPUtime=51.1
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 2927 0 0 0 5108 2 0 0 25 0 1 0 217476724 12562432 2910 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 3067 2910 81 214 0 2849 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 12268

[startup+102.347 s]
/proc/loadavg: 0.98 0.98 0.98 2/78 11556
/proc/meminfo: memFree=424888/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=14380 CPUtime=102.31
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 3449 0 0 0 10228 3 0 0 25 0 1 0 217476724 14725120 3432 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 3595 3432 81 214 0 3377 0
Current children cumulated CPU time (s) 102.31
Current children cumulated vsize (KiB) 14380

[startup+162.378 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 11556
/proc/meminfo: memFree=422968/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=16228 CPUtime=162.33
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 3908 0 0 0 16229 4 0 0 25 0 1 0 217476724 16617472 3891 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 4057 3891 81 214 0 3839 0
Current children cumulated CPU time (s) 162.33
Current children cumulated vsize (KiB) 16228

[startup+222.401 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 11556
/proc/meminfo: memFree=421368/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=17680 CPUtime=222.33
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 4294 0 0 0 22229 4 0 0 25 0 1 0 217476724 18104320 4277 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 4420 4277 81 214 0 4202 0
Current children cumulated CPU time (s) 222.33
Current children cumulated vsize (KiB) 17680

Solver just ended. Dumping a history of the last processes samples

[startup+222.911 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 11556
/proc/meminfo: memFree=421368/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=17680 CPUtime=222.84
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 4297 0 0 0 22280 4 0 0 25 0 1 0 217476724 18104320 4280 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 4420 4280 81 214 0 4202 0
Current children cumulated CPU time (s) 222.84
Current children cumulated vsize (KiB) 17680

[startup+229.464 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 11556
/proc/meminfo: memFree=421240/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=17944 CPUtime=229.39
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 4337 0 0 0 22935 4 0 0 25 0 1 0 217476724 18374656 4320 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 4486 4320 81 214 0 4268 0
Current children cumulated CPU time (s) 229.39
Current children cumulated vsize (KiB) 17944

[startup+236.023 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 11556
/proc/meminfo: memFree=386936/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=52040 CPUtime=235.96
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 12887 0 0 0 23588 8 0 0 25 0 1 0 217476724 53288960 12870 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134524268 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 13010 12870 87 214 0 12792 0
Current children cumulated CPU time (s) 235.96
Current children cumulated vsize (KiB) 52040

[startup+239.303 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 11556
/proc/meminfo: memFree=386872/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=52052 CPUtime=239.23
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 12897 0 0 0 23915 8 0 0 25 0 1 0 217476724 53301248 12880 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523599 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 13013 12880 91 214 0 12795 0
Current children cumulated CPU time (s) 239.23
Current children cumulated vsize (KiB) 52052

[startup+240.939 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 11556
/proc/meminfo: memFree=386872/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=52052 CPUtime=240.87
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 12897 0 0 0 24079 8 0 0 25 0 1 0 217476724 53301248 12880 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523599 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 13013 12880 91 214 0 12795 0
Current children cumulated CPU time (s) 240.87
Current children cumulated vsize (KiB) 52052

[startup+241.759 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 11556
/proc/meminfo: memFree=386872/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=52052 CPUtime=241.69
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4194304 12897 0 0 0 24161 8 0 0 25 0 1 0 217476724 53301248 12880 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523158 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 13013 12880 91 214 0 12795 0
Current children cumulated CPU time (s) 241.69
Current children cumulated vsize (KiB) 52052

[startup+242.167 s]
/proc/loadavg: 0.99 0.98 0.98 2/78 11556
/proc/meminfo: memFree=386872/2055920 swapFree=4192812/4192956
[pid=11555] ppid=11553 vsize=52052 CPUtime=242.09
/proc/11555/stat : 11555 (mmisat) R 11553 11555 11170 0 -1 4195840 12904 0 0 0 24188 21 0 0 25 0 1 0 217476724 53301248 12884 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 135098577 0 0 4096 0 0 0 0 17 1 0 0
/proc/11555/statm: 13013 12884 95 214 0 12795 0
Current children cumulated CPU time (s) 242.09
Current children cumulated vsize (KiB) 52052

Child ended because it received signal 6 (SIGABRT)
Real time (s): 242.245
CPU time (s): 242.182
CPU user time (s): 241.887
CPU system time (s): 0.294955
CPU usage (%): 99.9742
Max. virtual memory (cumulated for all children) (KiB): 52052

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 241.887
system time used= 0.294955
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 12909
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 8
involuntary context switches= 254

runsolver used 0.274958 second user time and 0.58991 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Tue Feb 20 12:40:18 UTC 2007

IDJOB= 301517
IDBENCH= 20061
IDSOLVER= 108
FILE ID= node2/301517-1171975218

PBS_JOBID= 3849049

Free space on /tmp= 66549 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/LargeSize/5SAT/v1000/unif-k5-r20-v1000-c20000-S837858872-05.cnf
COMMAND LINE= /tmp/evaluation/301517-1171975218/mmisat /tmp/evaluation/301517-1171975218/instance-301517-1171975218.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-301517-1171975218 -o ROOT/results/node2/solver-301517-1171975218 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/301517-1171975218/mmisat /tmp/evaluation/301517-1171975218/instance-301517-1171975218.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  85514aaeb8ddbf9105f63035677ed014

RANDOM SEED= 629507547

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.247
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.247
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        439120 kB
Buffers:         52940 kB
Cached:        1425516 kB
SwapCached:          0 kB
Active:         962828 kB
Inactive:       575388 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        439120 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1588 kB
Writeback:           0 kB
Mapped:          78688 kB
Slab:            64144 kB
Committed_AS:  1185488 kB
PageTables:       1812 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66499 MiB

End job on node2 on Tue Feb 20 12:44:20 UTC 2007